2802123 has 6 divisors (see below), whose sum is σ = 4047524. Its totient is φ = 1868076.

The previous prime is 2802109. The next prime is 2802131. The reversal of 2802123 is 3212082.

It is a happy number.

2802123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2802123 - 2⁵ = 2802091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2802096 and 2802105.

It is not an unprimeable number, because it can be changed into a prime (2802143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155665 + ... + 155682.

2^2802123 is an apocalyptic number.

2802123 is a deficient number, since it is larger than the sum of its proper divisors (1245401).

2802123 is a wasteful number, since it uses less digits than its factorization.

2802123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311353 (or 311350 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2802123 is about 1673.9543004515. The cubic root of 2802123 is about 140.9815880591.

The spelling of 2802123 in words is "two million, eight hundred two thousand, one hundred twenty-three".